Reinforcing Deformed Steel Bars with Grade HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
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Specification
Standard:
GB
Technique:
Hot Rolled
Shape:
Round
Surface Treatment:
Black
Steel Grade:
HRB400
Thickness:
6-32mm
Length:
12m/pc
Net Weight:
2mt/bundle
OKorder is offering high quality Hot Rolled Rebars at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to Africa, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger..
Label: to be specified by customer, generally, each bundle has 1-2 labels
Product Advantages:
OKorder's Hot Rolled Rebars are durable, strong, and resist corrosion.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
Manufacture: Hot rolled
Grade: HRB400 – HRB500
Certificates: ISO, SGS, BV, CIQ
Length: 6m – 12m, as per customer request
Packaging: Export packing, nude packing, bundled
Grade | Technical data of the original chemical composition (%) | ||||||
C | Mn | Si | S | P | V | ||
HRB400 | ≤0.25 | ≤1.60 | ≤0.80 | ≤0.045 | ≤0.045 | 0.04-0.12 | |
Physical capability | |||||||
Yield Strength (N/cm²) | Tensile Strength (N/cm²) | Elongation (%) | |||||
≥400 | ≥570 | ≥14 | |||||
Theoretical weight and section area of each diameter as below for your information:
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m bar(kg) |
6 | 28.27 | 0.222 | 2.664 |
8 | 50.27 | 0.395 | 4.74 |
10 | 78.54 | 0.617 | 7.404 |
12 | 113.1 | 0.888 | 10.656 |
14 | 153.9 | 1.21 | 14.52 |
16 | 201.1 | 1.58 | 18.96 |
18 | 254.5 | 2.00 | 24 |
20 | 314.2 | 2.47 | 29.64 |
22 | 380.1 | 2.98 | 35.76 |
25 | 490.9 | 3.85 | 46.2 |
28 | 615.8 | 4.83 | 57.96 |
32 | 804.2 | 6.31 | 75.72 |
36 | 1018 | 7.99 | 98.88 |
40 | 1257 | 9.87 | 118.44 |
50 | 1964 | 15.42 | 185.04 |
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered by OKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
Q4:What's your payment terms ?
A4:Mostly,we collect the money by T/T and LC at sight . We also accept time LC at 90/120 days sight.
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- Q: Can steel rebars be used in other applications besides construction?
- Yes, steel rebars can be used in other applications besides construction. They are commonly utilized in various industries such as automotive, manufacturing, and infrastructure projects, where their high strength and durability make them suitable for reinforcement purposes. Additionally, steel rebars can also be employed in sculptures, art installations, and DIY projects due to their malleability and versatility.
- Q: Can steel rebars be used in road or highway construction?
- Yes, steel rebars can be used in road or highway construction. Steel rebars, also known as reinforcing bars, are commonly used in the construction industry to provide additional strength and support to concrete structures. In road and highway construction, rebars are typically used in the construction of reinforced concrete pavements, bridge decks, and retaining walls. Rebars are embedded in concrete to enhance its tensile strength, as concrete is strong in compression but weak in tension. By adding rebars to the concrete, it helps distribute the tensile forces and improves the overall durability and load-bearing capacity of the road or highway infrastructure. The use of steel rebars in road or highway construction offers several advantages. Firstly, it improves the structural integrity and longevity of the infrastructure, as reinforced concrete structures are better able to withstand heavy traffic loads, temperature changes, and environmental factors. Secondly, rebars help prevent cracking and deterioration of the concrete, reducing the need for frequent repairs and maintenance. Additionally, the use of rebars allows for more efficient and cost-effective construction, as it enables the use of thinner concrete sections without compromising strength. Overall, steel rebars are a crucial component in road or highway construction, as they provide the necessary reinforcement to ensure the strength, durability, and longevity of the infrastructure.
- Q: How do steel rebars resist fatigue and cyclic loading?
- Steel rebars are specifically designed to resist fatigue and cyclic loading due to their unique properties and design. Firstly, steel rebars are made from high-strength steel, which has excellent resistance to fatigue. High-strength steel has a higher yield strength and ultimate tensile strength compared to regular steel, allowing it to withstand repetitive loading without undergoing significant deformation or failure. This property helps rebars endure cyclic loading without experiencing fatigue failure. Moreover, steel rebars are reinforced with rib patterns along their surface. These ribs increase the surface area, enhancing the bond between the rebar and surrounding concrete. This increased bond strength helps to distribute the cyclic loads more evenly, reducing the localized stress concentration. By distributing the loads, the rebars are better able to resist fatigue and cyclic loading. Additionally, rebars are often designed with a specific diameter and spacing to optimize their load-carrying capacity and resist fatigue. The design takes into consideration the anticipated cyclic loads, ensuring that the rebars are adequately spaced and sized to handle the expected stresses. The spacing between rebars also allows for proper concrete flow and consolidation during construction, further enhancing the overall performance and resistance to fatigue. Furthermore, proper installation and quality control during construction play a crucial role in ensuring the rebars' resistance to fatigue and cyclic loading. Adequate concrete cover, proper placement within the concrete, and secure anchoring of the rebars all contribute to their ability to withstand cyclic loading over time. In summary, steel rebars resist fatigue and cyclic loading through their high-strength steel composition, ribbed surface patterns, optimized spacing and diameter, and proper installation techniques. These features work collectively to enhance their load-carrying capacity, distribute loads more evenly, and minimize stress concentration, resulting in improved resistance to fatigue and cyclic loading.
- Q: Can steel rebars be used in corrosive environments?
- No, steel rebars are not suitable for use in corrosive environments as they are prone to corrosion and can weaken over time.
- Q: How do steel rebars affect the durability of concrete?
- Steel rebars play a crucial role in enhancing the durability of concrete structures. They are typically embedded within the concrete to provide reinforcement and improve the overall strength and longevity of the structure. Firstly, steel rebars enhance the tensile strength of the concrete. While concrete has excellent compressive strength, it is weak in tension. When exposed to external forces or loads, concrete tends to crack and fail under tension. However, the inclusion of steel rebars helps to distribute the applied load throughout the structure, effectively resisting cracking and preventing the propagation of cracks. This reinforcement allows the concrete to withstand greater tensile forces, thus enhancing its durability. Additionally, steel rebars help to control the shrinkage and cracking of concrete. During the curing process, concrete undergoes shrinkage due to the evaporation of water. This shrinkage can lead to the formation of cracks, which can compromise the integrity of the structure. By incorporating steel rebars, the concrete is reinforced and the shrinkage is restrained, minimizing the occurrence and propagation of cracks. This, in turn, ensures the durability of the concrete by maintaining its structural integrity. Moreover, steel rebars are highly resistant to corrosion. Concrete is generally alkaline, which creates a protective layer on the surface of the steel rebars, preventing them from rusting or corroding. This resistance to corrosion is vital in maintaining the durability of concrete structures, especially in environments where they are exposed to moisture, chemicals, or other corrosive agents. The presence of steel rebars ensures that the concrete remains structurally sound and prevents any potential weakening or deterioration due to corrosion. In conclusion, steel rebars significantly enhance the durability of concrete structures. They improve the tensile strength, control shrinkage and cracking, and provide resistance to corrosion. By reinforcing the concrete, steel rebars ensure that the structure can withstand external forces, maintain its structural integrity, and have a longer lifespan.
- Q: Can steel rebars be used in sound barrier walls?
- Yes, steel rebars can be used in sound barrier walls. Steel rebars are commonly used in the construction of reinforced concrete structures, including sound barrier walls. These rebars provide strength and durability to the walls, ensuring they can withstand the forces exerted on them by wind, weather, and impacts. Additionally, steel rebars help to enhance the structural integrity of the sound barrier walls, making them more resistant to vibrations and noise transmission. Therefore, steel rebars are a suitable and commonly used material in the construction of sound barrier walls.
- Q: What is the effect of moisture on steel rebars?
- The impact of moisture on steel rebars can have significant consequences and give rise to a range of problems. Moisture has the ability to expedite the process of corrosion in steel rebars, leading to their gradual deterioration and rusting. This corrosion ultimately weakens the structural integrity of the rebars and can result in failures within concrete structures. When steel rebars come into contact with moisture, it initiates an electrochemical reaction called corrosion, whereby the water reacts with the iron in the steel. This reaction yields iron oxide, commonly known as rust, which expands and causes the rebars to crack and flake. As the corrosion progresses, the rebars gradually lose their strength, compromising the overall stability of the structure. Moisture also contributes to the development of carbonation in concrete, further heightening the risk of corrosion in steel rebars. Carbonation takes place when carbon dioxide from the atmosphere reacts with the calcium hydroxide in concrete, reducing the alkalinity of the material. This decrease in alkalinity diminishes the rebars' ability to passivate, rendering them more susceptible to corrosion. Apart from corrosion, moisture can lead to other issues such as concrete expansion, freeze-thaw damage, and efflorescence. When moisture infiltrates the concrete and subsequently freezes, it expands, causing cracks and flaking. This freeze-thaw cycle can further accelerate the corrosion process in steel rebars. On the other hand, efflorescence refers to the formation of crystalline deposits on the surface of concrete when moisture evaporates, leaving behind salts. This powdery, white substance not only detracts from the appearance of concrete structures but also serves as an indicator of potential moisture-related problems. To mitigate the adverse effects of moisture on steel rebars, several preventive measures can be implemented. These include utilizing rebars that possess resistance to corrosion, applying protective coatings or membranes to the rebars, ensuring adequate concrete cover over the rebars, and implementing effective drainage systems to prevent the accumulation of moisture. Regular inspections and maintenance are also of utmost importance in order to identify and address any moisture-related issues before they escalate and result in structural complications.
- Q: How do steel rebars contribute to the structural integrity of a building during earthquakes?
- Steel rebars contribute to the structural integrity of a building during earthquakes by providing reinforcement and stability. They are embedded within the concrete to increase its tensile strength, which helps in resisting the lateral forces and vibrations caused by seismic activity. The rebars distribute the stress and load across the structure, preventing excessive bending or cracking. This reinforcement enhances the building's ability to withstand the destructive forces of an earthquake, reducing the risk of collapse and ensuring the overall safety and durability of the structure.
- Q: How do steel rebars affect the aesthetics of a construction project?
- Steel rebars, an essential element of reinforced concrete structures, have a significant influence on the aesthetics of construction projects. Although their primary purpose is to provide strength and reinforcement to concrete, their presence can have an impact on the overall appearance of the project. The visibility of steel rebars is one way they affect aesthetics. In infrastructure projects like bridges or parking garages, it is common to leave rebars exposed during construction. This exposure can create a distinct industrial or modern look that some find aesthetically pleasing. Architects and designers may intentionally embrace this raw and utilitarian appearance to achieve a specific aesthetic vision. However, in many architectural projects, particularly those involving residential or commercial buildings, the visibility of steel rebars is often undesirable. In such cases, rebars are typically concealed within the structure and covered with finishes such as concrete, plaster, or decorative cladding. This approach enhances the aesthetics of the construction project by shifting the focus from structural elements to the overall design and finishes. Furthermore, the placement and arrangement of rebars can also impact aesthetics. In intricate architectural designs, rebars must be precisely positioned to ensure the desired structural integrity. This presents challenges for designers as they strive to achieve functionality and visual appeal. However, with careful planning and coordination, rebars can be strategically placed to minimize their visual impact while maintaining the desired aesthetics of the project. It is important to note that aesthetics should never compromise the safety and structural integrity of a construction project. While efforts can be made to conceal or minimize the visual impact of steel rebars, proper installation and adherence to engineering standards must always take priority. Ultimately, the aesthetic impact of steel rebars on a construction project depends on the design intent, architectural style, and the balance between functionality and visual appeal.
- Q: What is the effect of overloading on steel rebars?
- Overloading on steel rebars can have a detrimental effect on their structural integrity. It can lead to deformation, bending, or even fracture of the rebars, compromising the overall strength and stability of the reinforced structure. Additionally, overloading can accelerate corrosion processes, reducing the rebars' lifespan and potentially causing structural failure. Therefore, it is essential to ensure that steel rebars are not subjected to excessive loads to maintain their performance and prevent potential hazards.
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Reinforcing Deformed Steel Bars with Grade HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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